A "secret dossier" relating to allegations made against a chief constable has been stolen from Police Scotland's Dundee headquarters.

The file disappeared from the Tayside division's offices in Bell Street, The Courier reported.

It contains information on allegations made against Justine Curran, ex-chief constable of the former Tayside Police, according to the newspaper.

Ms Curran, now chief constable of Humberside Police, was cleared of any wrongdoing by the Tayside joint police board last year.

Officers from Strathclyde are investigating the alleged theft.

A spokeswoman for Police Scotland said: "Police Scotland is conducting an inquiry into the theft from within Tayside divisional headquarters in Dundee. As this is an ongoing investigation, it would not be appropriate to comment further at this time."